Hydraulic buffering rear depth wheel assembly and turnover plow
By designing a hydraulically buffered rear-mounted depth limit wheel assembly in the flip plow, the impact force and fixability problems of the depth limit wheel when it contacts the ground, achieving longer service life and lower noise.
Patent Information
- Application Number
- CN202422256848.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The depth limiting wheels in the existing flip plow will produce a large impact force when they contact the ground and are difficult to fix, resulting in the failure of the depth limiting effect.
A hydraulic buffer rear depth limit wheel assembly is designed, including a hydraulic cylinder, a depth limit wheel body, a support frame and a limit rod assembly. The hydraulic cylinder acts as a buffer when the depth limit wheel falls, ensuring that the depth limit wheel first contacts the ground, and fixes the position of the depth limit wheel through the limit rod assembly to avoid its forward movement.
It effectively reduces the impact force of the depth limit wheel on the flip plow, extends the service life of the depth limit wheel limit member, and avoids the generation of noise, while ensuring the directional contact and stable operation of the depth limit wheel.
Smart Images
Figure CN222996988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a reversible plough, in particular to a hydraulic buffer rear-positioned depth-limiting wheel assembly and a reversible plough. Background Art
[0002] The reversible plow is used in conjunction with the tractor. The reversible plow includes a main beam, and the lifting and flipping of the main beam are controlled by a double distributor. A plowshare and a depth-limiting wheel are provided on the main beam. The depth-limiting wheel is used to limit the plowing depth of the plowshare, and the depth-limiting wheel will flip as the main beam flips.
[0003] During the operation of the reversible plow, after reaching the edge of the field, the tractor needs to lift the rear suspension so that the reversible plow leaves the ground and has enough reversing height, turn around and flip the reversible plow and other series of actions. After the reversible plow is lifted to the highest point by the tractor, the depth limiting wheel is affected by gravity, and the depth limiting wheel support frame is perpendicular to the ground at this time. After flipping, the depth limiting wheel performs partial circular motion. After flipping into place, the depth limiting wheel drops under the action of gravity, which will produce a large impact force into the soil, greatly shortening the service life of related components of the depth limiting wheel, accompanied by a large amount of uncomfortable noise; and after the depth limiting wheel contacts the ground, it is difficult to fix and will move forward, causing the depth limiting wheel limiting component to fail to play a depth limiting role. The tractor rear suspension needs to be lifted again, and the tractor needs to move forward to slowly drop the plow to make the depth limiting wheel support rod and the limiting component work normally.
[0004] The applicant has found that the prior art has at least the following technical problems: the depth limiting wheel in the prior art will generate a large impact force when contacting the ground, and is difficult to fix after contacting the ground, resulting in failure of the depth limiting function. Utility Model Content
[0005] The purpose of the utility model is to provide a hydraulic buffer rear-mounted depth-limiting wheel assembly and a reversible plow, so as to solve the technical problems in the prior art that the reversible plow has a large deadweight and produces a large impact force, shortens the service life of the depth-limiting wheel limiting component and produces a large noise, and the reversible plow has an undirected depth limit when it touches the ground after being turned over; the many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the utility model are detailed in the following description.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] The hydraulic buffer rear depth limiting wheel assembly provided by the utility model comprises a connecting frame, a supporting frame, a depth limiting wheel body, a hydraulic cylinder and a limiting rod assembly, wherein:
[0008] The support frame is rotatably connected to the connecting frame, and the depth limiting wheel body is rotatably connected to the support frame;
[0009] The fixed end of the hydraulic cylinder is rotatably connected to the connecting frame, and the telescopic end of the hydraulic cylinder is rotatably connected to the support frame;
[0010] The limiting rod assembly is fixed on the connecting frame, and a limiting plate is fixed on the support frame. When the support frame and the depth-limiting wheel body fall under the action of gravity until the limiting plate abuts against the limiting rod assembly, the depth-limiting wheel body contacts the ground and limits the tillage depth to the target value.
[0011] Preferably, the limiting rod assembly includes a sleeve, a limiting inner rod and an end shaft, where:
[0012] One end of the sleeve is fixed on the connecting frame, and one end of the limiting inner rod extends into the sleeve and is threadedly connected to the sleeve;
[0013] The end shaft is fixed to the other end of the limiting inner rod for abutting against the limiting plate.
[0014] Preferably, a locking nut is sleeved on the limiting inner rod, and the locking nut is threadedly connected to the limiting inner rod and abuts against the end of the sleeve.
[0015] Preferably, a positioning groove is provided on the limiting plate, and the end shaft extends into the positioning groove to limit the tillage depth of the depth-limiting wheel body.
[0016] Preferably, the positioning groove is an arc-shaped groove, the end shaft is a cylindrical structure, and the end shaft is perpendicular to the limiting inner rod.
[0017] Preferably, the number of the limiting rod assemblies is at least two groups, at least two positioning grooves are provided on the limiting plate, and the positioning grooves are located at opposite ends of the limiting plate;
[0018] When the hydraulic buffer rear depth-limiting wheel assembly is flipped to one side of the turning plow along with the main beam, the first group of the limiting rod assemblies abuts against one of the positioning grooves. When the hydraulic buffer rear depth-limiting wheel assembly is flipped to one side of the turning plow along with the main beam, the second group of the limiting rod assemblies abuts against the other positioning groove.
[0019] Preferably, the positioning grooves are symmetrically arranged about the rotating shaft of the support frame.
[0020] Preferably, a rotating shaft rod is provided on the support frame, a clamping jaw is fixed to the telescopic end of the hydraulic cylinder, the rotating shaft rod extends into the clamping jaw, and when the support frame and the depth-limiting wheel body fall under the action of gravity, the clamping jaw can rotate about the rotating shaft rod as the axis.
[0021] The utility model provides a reversible plow, which includes a main beam and the above-mentioned hydraulic buffer rear depth wheel assembly, and the connecting frame is fixedly connected to the main beam.
[0022] The hydraulic buffer rear depth wheel assembly and the reversible plow provided by the utility model have the following beneficial effects compared with the prior art: The hydraulic cylinder plays a buffering and rear-positioning role. When the depth wheel body falls into the soil under the action of gravity, it can play a buffering role, so that the depth wheel body slowly falls, reducing damage to the reversible plow; Under the action of the hydraulic cylinder, when the depth wheel body falls, it always contacts the ground earlier than the plowshare; When the support frame and the depth wheel body fall under the action of gravity until the limiting plate abuts against the limiting rod assembly, the depth wheel body contacts the ground, and the tillage depth is limited to the target value, and the position of the depth wheel body can be relatively fixed, preventing the depth wheel body from moving forward and ensuring the depth-limiting effect on the plowshare. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0024] Figure 1 It is a schematic structural diagram of one perspective of the hydraulic buffer rear depth wheel assembly;
[0025] Figure 2 It is a schematic structural diagram of another perspective of the hydraulic buffer rear depth wheel assembly;
[0026] Figure 3 is Figure 2 a partial enlarged view of part A in
[0027] Figure 4 It is a schematic structural diagram of the third perspective of the hydraulic buffer rear depth wheel assembly;
[0028] Figure 5 It is a schematic structural diagram of the limiting plate.
[0029] In the figure, 1, depth wheel body; 2, hydraulic cylinder; 21, clamping jaw; 3, limiting rod assembly; 31, sleeve; 32, limiting inner rod; 33, end shaft; 34, locking nut; 4, support frame; 41, rotating shaft rod; 5, limiting plate; 51, positioning groove; 6, connecting frame; 7, rotating shaft; 8, main beam. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model fall within the scope protected by the present utility model.
[0031] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0032] In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] The embodiment of the present utility model provides a hydraulic buffer rear depth-limiting wheel assembly. The hydraulic cylinder plays a buffering and rear-positioning role, can relatively fix the position of the depth-limiting wheel body, prevent the depth-limiting wheel body from moving forward, and ensure the depth-limiting effect on the plowshare.
[0034] The following Figures 1 - 5 will elaborate on the technical solutions provided by the present utility model in more detail.
[0035] The hydraulic buffer rear depth-limiting wheel assembly provided by the utility model comprises a connecting frame 6, a support frame 4, a depth-limiting wheel body 1, a hydraulic cylinder 2 and a limiting rod assembly 3, wherein: the support frame 4 is rotatably connected with the connecting frame 6, and the depth-limiting wheel body 1 is rotatably connected to the support frame 4; the fixed end of the hydraulic cylinder 2 is rotatably connected to the connecting frame 6, and the telescopic end of the hydraulic cylinder 2 is rotatably connected to the support frame 4; the limiting rod assembly 3 is fixed to the connecting frame 6, a limiting plate 5 is fixed on the support frame 4, when the support frame 4 and the depth-limiting wheel body 1 fall under the action of gravity until the limiting plate 5 abuts against the limiting rod assembly 3, the depth-limiting wheel body 1 contacts the ground, and the tillage depth is limited to a target value.
[0036] Wherein, the function of the connecting frame 6 is to connect the support frame 4 and the main beam 8, and the function of the support frame 4 is to support the depth-limiting wheel body 1, so that the depth-limiting wheel body 1 can flip together with the main beam 8.
[0037] For the hydraulic buffer rear depth-limiting wheel assembly of this embodiment, the hydraulic cylinder 2 plays a buffering and rear-positioning role. When the depth-limiting wheel body 1 falls into the soil under the action of gravity, it can play a buffering role, so that the depth-limiting wheel body 1 slowly falls, reducing the damage to the reversible plow and improving the service life of the reversible plow; under the action of the hydraulic cylinder 2, when the depth-limiting wheel body 1 falls, it always contacts the ground earlier than the plowshare.
[0038] For the hydraulic buffer rear depth-limiting wheel assembly of this embodiment, firstly, it solves the problem that when the reversible plow operates and flips, the depth-limiting wheel makes a circular swinging motion. Due to its large self-weight, it generates a large inertial impact force, shortening the service life of the depth-limiting wheel limiting component and generating a large amount of noise. Secondly, it solves the problem that the depth-limiting wheel lands in an indeterminate direction after flipping, avoiding the situation that the depth-limiting wheel is placed in the front and cannot contact the depth-limiting component.
[0039] When the support frame 4 and the depth-limiting wheel body 1 fall under the action of gravity until the limiting plate 5 abuts against the limiting rod assembly 3, the depth-limiting wheel body 1 contacts the ground, and the tillage depth is limited to a target value, and it can relatively fix the position of the depth-limiting wheel body 1, preventing the depth-limiting wheel body 1 from moving forward and ensuring the depth-limiting effect on the plowshare.
[0040] As an optional implementation manner, see Figure 3 As shown, the limiting rod assembly 3 comprises a sleeve 31, a limiting inner rod 32 and an end shaft 33, wherein: one end of the sleeve 31 is fixed to the connecting frame 6, one end of the limiting inner rod 32 extends into the sleeve 31 and is threadedly connected with the sleeve 31; the end shaft 33 is fixed to the other end of the limiting inner rod 32 for abutting against the limiting plate 5.
[0041] The sleeve 31 is connected to the connecting frame 6. Since the limiting inner rod 32 is threadedly connected with the sleeve 31, rotating the limiting inner rod 32 can adjust the length of the limiting inner rod 32 extending out of the sleeve 31, thereby adjusting the overall length of the limiting rod assembly 3; the end shaft 33 facilitates abutting against and positioning with the limiting plate 5.
[0042] By adjusting the overall length of the limit rod assembly 3 through the above structure, when the support frame 4 and the depth-limiting wheel body 1 fall under the action of gravity until the limit plate 5 abuts against the limit rod assembly 3, the depth-limiting wheel body 1 contacts the ground, and the tillage depth is limited to the target value, and the position of the depth-limiting wheel body 1 can be relatively fixed to prevent the depth-limiting wheel body 1 from moving forward, ensuring the depth-limiting effect on the plowshare.
[0043] Among them, the overall length of the adjusting limit rod assembly 3 is adjusted according to the target tillage depth before use and is not readjusted during use.
[0044] As an optional implementation manner, refer to Figure 3 As shown, a locking nut 34 is sleeved outside the limit inner rod 32. The locking nut 34 is threadedly connected to the limit inner rod 32 and abuts against the end of the sleeve 31.
[0045] The locking nut 34 locks between the limit inner rod 32 and the sleeve 31, improving the stability of the structure and fixing the length of the limit rod assembly 3.
[0046] As an optional implementation manner, refer to Figure 3 and Figure 5 As shown, a positioning groove 51 is provided on the limit plate 5, and the end shaft extends into the positioning groove 51, thereby limiting the tillage depth of the depth-limiting wheel body 1.
[0047] The matching structure of the end shaft and the positioning groove 51 can limit the tillage depth to the target value when the support frame 4 and the depth-limiting wheel body 1 fall under the action of gravity until the limit plate 5 abuts against the limit rod assembly 3, and can relatively fix the position of the depth-limiting wheel body 1 to prevent the depth-limiting wheel body 1 from moving forward.
[0048] As an optional implementation manner, refer to Figure 3 and Figure 5 As shown, the positioning groove 51 is an arc-shaped groove, the end shaft 33 is a cylindrical structure, and the end shaft 33 is perpendicular to the limit inner rod 32.
[0049] The above structure enables the end shaft to abut against the positioning groove 51 relatively stably, preventing the end shaft 33 from disengaging from the positioning groove 51 and improving the stability of the structure.
[0050] As an optional implementation manner, refer to Figure 2As shown, the number of the limit rod assemblies 3 is at least two groups, and at least two positioning grooves 51 are provided on the limit plate 5, and the positioning grooves 51 are located at the opposite ends of the limit plate 5; when the hydraulic buffer rear depth-limiting wheel assembly is turned to one side of the turning plow along with the main beam 8, the first group of limit rod assemblies 3 abuts against one of the positioning grooves 51, and when the hydraulic buffer rear depth-limiting wheel assembly is turned to one side of the turning plow along with the main beam 8, the second group of limit rod assemblies 3 abuts against the other positioning groove 51. Since the depth-limiting wheel body 1 is turned along with the main beam 8 during use, see Figure 1 As shown, the depth-limiting wheel body 1 is turned from one side to the other side along with the main beam 8. When the depth-limiting wheel body 1 is turned, the depth-limiting wheel body 1 falls again under the action of gravity. At this time, the second group of limit rod assemblies 3 abuts against the other positioning groove 51.
[0051] As an optional implementation manner, see Figure 5 As shown, the positioning grooves 51 are symmetrically arranged with respect to the rotating shaft 7 of the support frame 4.
[0052] As an optional implementation manner, see Figure 4 As shown, a rotating shaft rod 41 is provided on the support frame 4, a clamping jaw 21 is fixed to the telescopic end of the hydraulic cylinder 2, and the rotating shaft rod 41 extends into the clamping jaw 21. When the support frame 4 and the depth-limiting wheel body 1 fall under the action of gravity, the clamping jaw 21 can rotate around the rotating shaft rod 41 as the axis.
[0053] Through the above structure, the support frame 4 is rotationally connected to the telescopic end of the hydraulic cylinder 2, and the telescopic end of the hydraulic cylinder 2 falls along with the depth-limiting wheel body 1 under the action of gravity, playing a buffering and rear-positioning role.
[0054] For the hydraulic buffer rear depth-limiting wheel assembly of this embodiment, the overall length of the limit rod assembly 3 is adjusted according to the target tillage depth, that is, the length of the inner limit rod extending out of the sleeve is adjusted. The depth-limiting wheel body 1 falls under the action of gravity, and the hydraulic cylinder 2 makes the depth-limiting wheel body 1 slowly fall, reducing the damage to the turning plow; when the depth-limiting wheel body 1 falls to abut against the limit plate 5 and the limit rod assembly 3, the depth-limiting wheel body 1 contacts the ground and limits the tillage depth to the target value. The hydraulic buffer rear depth-limiting wheel assembly can move to the other side of the turning plow along with the turning of the main beam 8, and you can still play a role in limiting the tillage depth.
[0055] This embodiment also provides a turning plow, which includes a main beam 8 and the above-mentioned hydraulic buffer rear depth-limiting wheel assembly, and the connecting frame 6 is fixedly connected to the main beam 8.
[0056] For the turning plow of this embodiment, due to the above-mentioned hydraulic buffer rear depth-limiting wheel assembly, it also has the advantages of improving the service life of the turning plow and limiting the tillage depth to the target value.
[0057] In the description of this specification, specific features, structures, or characteristics may be combined in any one or more embodiments or examples in a suitable manner.
[0058] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0059] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A hydraulic buffer rear depth-limiting wheel assembly, characterized in that: It includes a connecting frame, a supporting frame, a depth-limiting wheel body, a hydraulic cylinder and a limiting rod assembly, wherein: The support frame is rotatably connected to the connecting frame, and the depth limiting wheel body is rotatably connected to the support frame; The fixed end of the hydraulic cylinder is rotatably connected to the connecting frame, and the telescopic end of the hydraulic cylinder is rotatably connected to the supporting frame; The limit rod assembly is fixed on the connecting frame, and the limit plate is fixed on the supporting frame. When the supporting frame and the depth limiting wheel body fall under the action of gravity until the limit plate and the limit rod assembly abut against each other, the depth limiting wheel body contacts the ground and limits the tillage depth to a target value.
2. The hydraulic buffer rear depth-limiting wheel assembly according to claim 1, characterized in that: The limiting rod assembly comprises a sleeve, a limiting inner rod and an end shaft, wherein: One end of the sleeve is fixed to the connecting frame, and one end of the limiting inner rod extends into the sleeve and is threadedly connected to the sleeve; The end shaft is fixed to the other end of the limiting inner rod to abut against the limiting plate.
3. The hydraulic buffer rear depth-limiting wheel assembly according to claim 2, characterized in that: The outer sleeve of the position-limiting inner rod is provided with a locking nut, the locking nut is threadedly connected with the position-limiting inner rod and abuts against the end of the sleeve.
4. The hydraulic buffer rear depth-limiting wheel assembly according to claim 2, characterized in that: A positioning groove is arranged on the limiting plate, and the end shaft extends into the positioning groove, thereby limiting the tilling depth of the depth limiting wheel body.
5. The hydraulic buffer rear depth-limiting wheel assembly according to claim 4, characterized in that: The positioning groove is an arc-shaped groove, the end shaft is a cylindrical structure, and the end shaft is vertically arranged with the limiting inner rod.
6. The hydraulic buffer rear depth-limiting wheel assembly according to claim 1, characterized in that: The number of the limiting rod assemblies is at least two groups, and the limiting plate is provided with at least two positioning grooves, and the positioning grooves are located at opposite ends of the limiting plate; When the hydraulic buffer rear depth limiting wheel assembly flips to one side of the flip plow along with the main beam, the first group of limit rod assemblies abuts against one of the positioning grooves; when the hydraulic buffer rear depth limiting wheel assembly flips to one side of the flip plow along with the main beam, the second group of limit rod assemblies abuts against the other positioning groove.
7. The hydraulic buffer rear depth-limiting wheel assembly according to claim 6, characterized in that: The positioning grooves are symmetrically arranged about the rotation axis of the support frame.
8. The hydraulic buffer rear depth-limiting wheel assembly according to claim 1, characterized in that: The support frame is provided with a rotating shaft rod, the telescopic end of the hydraulic cylinder is fixed with a clamping claw, the rotating shaft rod extends into the clamping claw, and when the support frame and the depth limiting wheel body fall under the action of gravity, the clamping claw can rotate with the rotating shaft rod as the axis.
9. A reversible plow, characterized in that: It comprises a main beam and the hydraulic buffer rear depth limiting wheel assembly according to any one of claims 1 to 8, wherein the connecting frame is fixedly connected to the main beam.